﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;
using System.Collections.Generic;
using System.Linq;

namespace Xceed.Silverlight.Data.Stats
{
  public class StatContext
  {
    internal StatContext(IEnumerable<string> resultNames, IEnumerable<StatResult> results)
    {
      if( resultNames == null )
        throw new ArgumentNullException( "resultNames" );

      if( results == null )
        throw new ArgumentNullException( "results" );


      m_statResultNames = resultNames.ToList();
      m_statResultValues = results.ToList();

      if( m_statResultNames.Count != m_statResultValues.Count )
        throw new ArgumentException( "The specified names and value counts are inconsistent." );
    }

    #region StatResultNames Property

    public IEnumerable<string> StatResultNames
    {
      get
      {
        return m_statResultNames;
      }
    }

    private List<string> m_statResultNames;
    private List<StatResult> m_statResultValues;

    #endregion

    public StatResult this[ string resultName ]
    {
      get
      {
        int index = m_statResultNames.IndexOf( resultName );

        if( index == -1 )
          throw new ArgumentException( "The specified resultName is invalid.", "resultName");

        return m_statResultValues[ index ];
      }
    }
  }
}
